im geting sick of my wii =[ I BEG FOR HELP

i got a chiped wii like 2 years ago and it works super fine with orignal CDs
its FW 4.0U
my issue is every time i burn a game it does not work only few of them did
games didint work :
call of duty black ops
mario galaxy
wii resort
no more heros 2
red steel
final fantasy
hunter house and many more
all i get is black screen or my wii crashes with error should eject the CD and restart my wii
and i did try downloading the same game with pal and ntsc
i tried hackmii and installing homebrew with sd card and iso cd still failed
and i did try using DVD-R, DVD+R, DVD+R DL and DVD+RW
i surched all the freakn guied and did alot and i dont know what to do anymore so someone please help me